A researcher follows the mutation rates in the nematode Caenorhabditis elegans in five different tissue types across 300 generations. One would expect mutation rates to be ________ across the different tissue types
a. equal
b. approximately equal
c. different
d. deleterious
e. None of the above
C
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A house plant that has been placed in the window will grow toward the source of light because auxin ____
a. becomes more concentrated on the illuminated side of the plant b. becomes less concentrated on the illuminated side of the plant c. becomes more concentrated in the roots of the plant d. inhibits the growth of cells on the shady side, so the cells on the sunny side grow faster e. is produced only when the sun shines
In a species of Drosophila, genes q and r are found on the same chromosome 20 centimorgans apart. A cross was made between the following individuals: What proportion of the offspring would you expect to have the wild-type phenotype?
A) 0.10 B) 0.20 C) 0.40 D) 0.80 E) None of these
Who demonstrated that phage genetic material is DNA and not protein?
A. Chargaff B. Franklin C. Avery, MacLeod, and McCarty D. Hershey and Chase E. Watson and Crick
Persons with asymptomatic infections may be (contaminants/reservoirs/zoonoses) of disease
What will be an ideal response?